"Web search services that don't require an API key" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Search, filter, count and sum Australian government open data, with every version kept.
Check the factual claims in a draft or an answer: a quick verdict, or a deep check with sources.
The world, on the record. AI infrastructure built on the observed web.
Indeed job listings by keyword and location, and full postings, as structured JSON.
DC Hub is the live data layer for data-center siting that agents can query and cite. Its Data Center Power Index (DCPI) scores where data centers can get grid power across 300+ markets daily. Also 330,000+ mapped power, grid, gas and fiber assets. 94 MCP tools at https://dchub.cloud/mcp plus a REST API at https://dchub.cloud/api/v1. Free tier needs no key; paid plans: dchub.cloud/pricing.
Threat intel for AI agents: IOCs, CVEs (EPSS/KEV), wallet sanctions and age, domain and URL checks.
Agent intake desk for property renovation. Read only, CORS open, fail closed, receipts recompute.
64 individually paid Chinese company data tools at 0.011 USDC per tool call via remote MCP and x402 on Base. 68 MCP tools total, including the schema helper and legacy tools. Selected registration, shareholder, risk, IP, legal, tax, website and other records; consult each live tool schema. Legacy Basic (3 modules) and Full (9 modules) remain 0.032 / 0.093 USDC, not bundles of the new tools. Discovery is free; data queries require a funded USDC wallet and x402 spending approval. Plain MCP clients do not pay automatically. Start with an exact Chinese legal name or company_id in company_detail; most company tools need its returned company_id. Record-detail tools use record_id from a matching separately paid parent list. New paged lists return the first page only, at most 5 rows; legacy lists at most 10. No automatic pagination, complete-history, factory or supplier-safety guarantee. Empty data is not no risk; statistics/trends are not detailed records. The old resolver is a capability notice, not a free lookup; native MPP is paused. Upstream checks passed for the 64 new tools; real-wallet payment-to-delivery acceptance and commercial redistribution/overseas delivery permission review remain pending. Guide: https://yangchunhong3000.github.io/cn-evidence-public-docs/v3-tools.html
China A-share market data over MCP: 22 tools for quotes, K-line, financials, money flow, top-trader boards, sectors, macro, convertible bonds and factor screening. Five tools need no API key, so you can connect and try it immediately.
Argentine economic statistics from official sources (BCRA, INDEC): FX, inflation, rates, reserves.
Google Trends interest over time, by region, and related queries and topics, as JSON.
Measured share of answer for 24 crypto and Web3 brands. An open dataset, not an audit of your site.
Measured share of answer for 20 SaaS brands. An open dataset, not an audit of your site.
Money, FX, capital-market and metadata-only China macro evidence with source clocks and limits.
Polymarket, Kalshi + 6 more prediction markets: live odds, volume, movers. Read-only, no auth.
Search and read Edgepedia, a free and growing encyclopedia with citations. No key.
Swiss phone directory: search people and businesses, reverse number lookup, business categories.
Romanian insolvency intelligence for your AI agent: every company in the Insolvency Proceedings Bulletin (BPI) since 2006, creditor tables, auctions, claim deadlines, and a watchlist with alerts.
US ISO interconnection queues and cited energy data. 25 free queries, then $49/mo or $490/yr.
Read-only flight fares for AI assistants: the cheapest fares a2bflight has seen on thousands of routes, one-way and round trip, each with the day it was seen. Three tools, no auth, no key.
